The Kindle version can be purchased via Amazon here for £18

(3rd edition)

A H Tunnacliffe BA PhD Dip Maths DCLP FCOptom and G D Janney FBDO

Published by the Association of British Dispensing Opticians

150 pages, 145 figures

Paperback

ISBN – 9780900099175

Mathematically based problems fully worked and explained. Numerous narrative style answers including definitions and examination-type questions.

Contents:

• Background Optical Principles
• Thin Lens and Surface Powers
• Cylindrical and Sphero-Cylindrical Lenses
• The Lens Measure, Sag and Thickness
• Ophthalmic Prisms
• Prismatic Effects
• Minimum Size of Uncut and Field Of View
• Bifocals and Trifocals
• Protective Lenses
• Obliquely Crossed Cylinders
• Lens Form and Effectivity
• Best Form Lenses

Essential reading for the following ABDO College courses:

• Fellowship Dispensing Diploma
• Foundation Degree in Ophthalmic Dispensing